Right now, almost all ./play.it scripts work only on archives sold in two places: GOG.com and HumbleBundle.com

This is not a good thing, because we don’t have any control on how long these stores will keep selling DRM-free games. We actually have seen both of them mess up at some point.

Please suggest other places that sell (or distribute for free) DRM-free games that we might use as a base for writing new ./play.it scripts, so we can losen our ties with this very small number of actors.